From 722d06b0291357552c82ca1abd9b40441bcfac04 Mon Sep 17 00:00:00 2001
From: jo <17280917+dev-jodee@users.noreply.github.com>
Date: Fri, 17 Jul 2026 12:41:11 -0400
Subject: [PATCH] fix(generate): load dart renderer via its ESM build

#8 stopped the total outage but dart itself still 500'd: its CJS build
(loaded via createRequire) requires the .cjs variants of a large
@codama/@solana/@noble tree that Next only bundles as .mjs, so
@codama/visitors-core/dist/index.node.cjs was missing from the lambda.

Load dart's real ESM build by path instead (bundler-ignored so Turbopack
leaves it a runtime import, avoiding its "expression too dynamic" error),
which reuses the already-bundled .mjs deps. Broaden outputFileTracingIncludes
to guarantee dart's ESM closure (@codama/@solana/@noble) is present.
---
 lib/codama-generate.ts | 23 +++++++++++++++--------
 next.config.ts         | 12 +++++++++---
 2 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/lib/codama-generate.ts b/lib/codama-generate.ts
index 5bc461c..56100c1 100644
--- a/lib/codama-generate.ts
+++ b/lib/codama-generate.ts
@@ -8,7 +8,7 @@ import JSZip from "jszip";
 import fs from "fs";
 import path from "path";
 import { randomUUID } from "crypto";
-import { createRequire } from "module";
+import { pathToFileURL } from "url";
 import type { Language } from "./codama-types";
 import { assertLanguageSupportedForIdl } from "./codama-compat";
 import { getCodamaRootNode, getIdlProgramName } from "./idl-utils";
@@ -91,13 +91,20 @@ export async function generateFromIdl(
       case "dart": {
         const dartDir = path.join(tmpDir, `${programName}-dart-client`);
         fs.mkdirSync(dartDir, { recursive: true });
-        // codama-renderers-dart@0.4.x mispublishes its ESM entry (exports `import` -> a
-        // .mjs absent from the tarball); load the working CJS build lazily here so a
-        // resolution failure can't break the other renderers at module load time.
-        const renderDart = createRequire(
-          path.join(process.cwd(), "package.json")
-        )("codama-renderers-dart")
-          .renderVisitor as typeof import("codama-renderers-dart").renderVisitor;
+        // codama-renderers-dart@0.4.x mispublishes its exports map: `import` points at a
+        // missing .mjs, and its CJS build drags in a large @codama/@solana/.cjs tree Next
+        // never bundles. Import the real ESM build by path (bundler-ignored so Turbopack
+        // leaves it as a runtime import) so it reuses the already-bundled .mjs deps the
+        // other renderers rely on. Lazy so any failure only affects dart.
+        const dartEntry = pathToFileURL(
+          path.join(
+            process.cwd(),
+            "node_modules/codama-renderers-dart/dist/index.node.js"
+          )
+        ).href;
+        const { renderVisitor: renderDart } = (await import(
+          /* webpackIgnore: true */ /* turbopackIgnore: true */ dartEntry
+        )) as typeof import("codama-renderers-dart");
         codama.accept(
           renderDart(dartDir, {
             formatCode: false,
diff --git a/next.config.ts b/next.config.ts
index 0abf6f0..bd15e1b 100644
--- a/next.config.ts
+++ b/next.config.ts
@@ -24,10 +24,16 @@ const nextConfig: NextConfig = {
     "memfs",
   ],
 
-  // codama-renderers-dart's broken exports map defeats Next's dependency tracer, so its
-  // files are missing from the serverless bundle. Force-include them for the generate route.
+  // codama-renderers-dart's broken exports map defeats Next's dependency tracer, so it and
+  // its dependency closure are missing from the serverless bundle. Force-include the ESM
+  // build's deps (dart + the codama/solana/noble packages it imports) for the generate route.
   outputFileTracingIncludes: {
-    "/api/generate": ["./node_modules/codama-renderers-dart/**/*"],
+    "/api/generate": [
+      "./node_modules/codama-renderers-dart/**/*",
+      "./node_modules/@codama/**/*",
+      "./node_modules/@solana/**/*",
+      "./node_modules/@noble/**/*",
+    ],
   },
 
   async headers() {